Preconditioning techniques for large linear systems: a survey
Journal of Computational Physics
A complete pivoting strategy for the right-looking Robust Incomplete Factorization preconditioner
Computers & Mathematics with Applications
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In this paper we develop new techniques for stabilizing factored approximate inverse preconditioners (AINV) using pivoting. This method yields stable preconditioners in many cases and can provide successful preconditioners in many situations when the underlying system is highly indefinite. Numerical examples illustrate the effectiveness of this approach.